Construction Administrative Assistant

Tasman; Greeley (CO); On-site; USD 36,000 - 40,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) with company match

HSA & FSA

Paid time off (PTO)

Paid holidays

Tuition reimbursement

Safety equipment provided

Employee Assistance Program (EAP)

Job summary

Tasman is seeking an experienced Construction Administrative Assistant to support day-to-day operations in the Construction Earthwork division in Greeley, CO. The role focuses on administrative tasks, billing support, and project data management from startup through closeout.

The ideal candidate will have strong organization, attention to detail and able to multitask in a fast-paced environment. Office-based, full-time role with standard hours and growth opportunities within the company.

Qualifications

• High school diploma or equivalent required.
• 1+ year of experience in accounting, billing, or administrative roles (construction or related field preferred).
• Proficiency in Microsoft Office; ability to learn accounting and project management systems.
• Strong organizational, written and verbal communication skills.
• Ability to manage multiple priorities, work independently and as part of a team.
• Must have valid driver’s license and authorization to work in the United States.

Responsibilities

• Create and support monthly client billings.
• Manage and track multiple project spreadsheets and data.
• Communicate project data clearly to managers.
• Generate job cost reports and assist with tracking budgets.
• Review and code accounts payable invoices; enter data into NetSuite.
• Support cost control tracking and documentation accuracy.
• Assist with documentation distribution and project coordination.
• Maintain organized project records and files; support startup and closeout processes.

Skills

Attention to detail

Organizational skills

Written & verbal communication

Multitasking

Team collaboration

Time management

Confidentiality

Independent work

Education

High school diploma

Associate degree (preferred)

Tools

Microsoft Office (Excel, Word, Outlook)

NetSuite (or similar)

Job description

Job DetailsLevel: ExperiencedJob Location: Greeley Area - Greeley, COPosition Type: Full TimeEducation Level: High SchoolSalary Range: $26.00 - $29.00 HourlyJob Shift: DayJob Category: Admin - ClericalConstruction Administrative Assistant

Support Projects. Manage Data. Keep Construction Moving.

Pay: $26.00 – $29.00 per hour Position Type: Full-Time, Non-Exempt Location: Greeley, Colorado (Office-Based) Travel: Minimal Reports To: Makaila Carey

The Role

The Construction Administrative Assistant supports day-to-day operations within Tasman’s Construction Earthwork division. This role provides critical administrative and job cost support, assisting with billing, tracking project data, managing documentation, and supporting project lifecycle activities from startup through closeout.

This position offers hands-on exposure to construction operations and job cost accounting, making it ideal for someone detail-oriented, organized, and eager to grow within a dynamic environment. The ideal candidate thrives in multitasking, problem-solving, and maintaining structure in a fast-paced setting.

What You’ll Be Doing

Administrative & Project Support

• Create and support monthly client billings
• Manage and track multiple project spreadsheets and data
• Communicate project data clearly and concisely to managers
• Generate job cost reports and assist with tracking budgets

Accounting & Data Management

• Review and code accounts payable (AP) invoices
• Enter equipment units and project-related data into NetSuite
• Support cost control tracking and documentation accuracy

Operational Support

• Assist with documentation distribution and project coordination
• Maintain organized project records and files
• Support project startup and closeout processes
• Perform additional administrative tasks as assigned

What You Bring

Required

• High school diploma or equivalent
• 1+ year of experience in accounting, billing, or administrative roles (construction or related field preferred)
• Proficiency in Microsoft Office (Excel, Word, Outlook)
• Ability to learn accounting and project management systems
• Strong organizational skills and attention to detail
• Strong written and verbal communication skills
• Ability to manage multiple priorities and adapt quickly
• Ability to work both independently and as part of a team
• Strong time management and task prioritization skills
• Ability to maintain confidentiality
• Valid driver’s license and authorization to work in the U.S.

Preferred

• Experience in oil & gas industry
• Associate’s degree in Accounting or related field

Work Environment

This role operates in a professional office setting:

Office Conditions:

• Regular use of computers, phones, and office equipment
• Collaboration with project managers and operations teams

Physical Requirements:

• Sit, stand, walk, and use hands for standard office tasks
• Occasionally lift up to 30 pounds
• Stand for periods of time and move within office environment

Schedule

• Full-time
• Monday – Friday, typically 8:00 a.m. – 4:00 p.m.
• Occasional evenings or weekends based on project needs
• Daily schedule may vary depending on workload

Work Authorization

• Must be authorized to work in the United States
• Must possess a valid driver’s license

Benefits

• Medical, dental, and vision insurance
• 401(k) with company match (up to 4%)
• Health Savings Account (HSA) & Flexible Spending Account (FSA)
• Paid time off (PTO)
• Paid sick time
• Company-sponsored paid holidays
• Tuition reimbursement
• Safety equipment provided
• Employee Assistance Program (EAP)

Why Join Tasman?

At Tasman Inc, we deliver environmental, construction, and consulting solutions with a strong commitment to safety, integrity, and excellence. Our teams support impactful projects that protect infrastructure, communities, and the environment.

Our work is guided by three core values:

WE ARE OUR PEOPLE

Safety is #1. We ensure every employee makes it home safe every day and succeed together as a team.

DO THE RIGHT THING

We operate with integrity, accountability, and respect for people and the environment.

PURSUE EXCELLENCE

We apply expertise, innovation, and high standards to everything we do.